The man who died at a spa park in Taupo on Tuesday has been named as San Qing Lu.
He was a 69-year-old Chinese national, a spokeswoman from the coroner's office said.
Lu was discovered unresponsive at the Otumuheke Stream Spa Park, in County Ave, Taupo police said.
St John Ambulance were called to the park close to the town centre just after 12.30pm on Tuesday but were unable to revive him.
Lu had been bathing alone in the Otumuheke Stream at the Taupo spa park. The thermal stream had bathing pools which were popular with tourists and locals.